GPS控制网求必要基线数的公式()。
A: J=n-1
B: J=n · m/N
C: J= C·(N-1)
D: J=C·(N-m)
A: J=n-1
B: J=n · m/N
C: J= C·(N-1)
D: J=C·(N-m)
举一反三
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